计算:(3x²-5xy-2y²)/(3x+y)
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计算:(3x²-5xy-2y²)/(3x+y)计算:(3x²-5xy-2y²)/(3x+y)计算:(3x²-5xy-2y²)/(3x+y)(
计算:(3x²-5xy-2y²)/(3x+y)
计算:(3x²-5xy-2y²)/(3x+y)
计算:(3x²-5xy-2y²)/(3x+y)
(3x²-5xy-2y²)/(3x+y)
=(3x+y)(x-2y)/(3x+y)
=x-2y